Which of the following bronchial hygiene therapy devices can be used to ventilate a patient?
a. Hayek Oscillator c. Percussionaire IPV-1
b. The Vest d. Positive expiratory pressure
ANS: A
The Hayek Oscillator is technically classified as an electrically powered noninvasive ventilator. This device consists of a flexible chest cuirass that is applied over the chest wall. The device de-livers both negative and positive pressure to the chest wall during the respiratory cycle. The nega-tive pressure creates inspiration, and the positive pressure produces a forced exhalation.
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